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https://github.com/bevyengine/bevy
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# Objective Added the possibility to draw arcs in 2d via gizmos ## Solution - Added `arc_2d` function to `Gizmos` - Added `arc_inner` function - Added `Arc2dBuilder<'a, 's>` - Updated `2d_gizmos.rs` example to draw an arc --------- Co-authored-by: kjolnyr <kjolnyr@protonmail.ch> Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: ira <JustTheCoolDude@gmail.com>
47 lines
1.4 KiB
Rust
47 lines
1.4 KiB
Rust
//! This example demonstrates Bevy's immediate mode drawing API intended for visual debugging.
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use std::f32::consts::PI;
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use bevy::prelude::*;
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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.add_systems(Startup, setup)
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.add_systems(Update, system)
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.run();
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}
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fn setup(mut commands: Commands) {
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commands.spawn(Camera2dBundle::default());
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}
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fn system(mut gizmos: Gizmos, time: Res<Time>) {
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let sin = time.elapsed_seconds().sin() * 50.;
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gizmos.line_2d(Vec2::Y * -sin, Vec2::splat(-80.), Color::RED);
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gizmos.ray_2d(Vec2::Y * sin, Vec2::splat(80.), Color::GREEN);
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// Triangle
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gizmos.linestrip_gradient_2d([
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(Vec2::Y * 300., Color::BLUE),
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(Vec2::new(-255., -155.), Color::RED),
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(Vec2::new(255., -155.), Color::GREEN),
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(Vec2::Y * 300., Color::BLUE),
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]);
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gizmos.rect_2d(
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Vec2::ZERO,
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time.elapsed_seconds() / 3.,
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Vec2::splat(300.),
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Color::BLACK,
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);
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// The circles have 32 line-segments by default.
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gizmos.circle_2d(Vec2::ZERO, 120., Color::BLACK);
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// You may want to increase this for larger circles.
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gizmos.circle_2d(Vec2::ZERO, 300., Color::NAVY).segments(64);
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// Arcs default amount of segments is linerarly interpolated between
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// 1 and 32, using the arc length as scalar.
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gizmos.arc_2d(Vec2::ZERO, sin / 10., PI / 2., 350., Color::ORANGE_RED);
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}
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